I have an orchid, which is purple. I want to ask, what is its name? thank you

Maybe it's Commelina. "Alias" Commelina communis, Commelina communis, Commelina communis, duck tongue red. [Scientific name] Tradescantia. Corydalis of Commelina. Viola yedoensis [Morphology] A perennial herb; The plant is purple, with obvious nodes and internodes, and it rises obliquely. The leaves are oblong, tapering at the top, with a reporter stem at the base and long cilia at the edge; Leaves sessile, flowers pink or rose purple, born on involucral bracts, flowers subsessile, sepals 3, free, petals 3, slightly connate at base; 6 stamens, filaments with rosary hairs and superior ovary; Capsules originating in Mexico. Widely cultivated in various schools, it is a good material for observing stomata (leaves) and cytoplasmic flow (filaments and fur). . [Habit] Originally from Mexico. Like warm and humid, not cold-resistant, avoid sun exposure, like semi-cloudy. Strong adaptability to drought, suitable for fertile and humid loam. [Breeding] Generally, cuttage is used to breed fish, which can be carried out in spring, summer and autumn. Cut off the branches with southern tips, about 10 cm long, remove the lower 1 ~ 2 leaves, and insert them directly into the potted soil, with 3 ~ 4 plants in each pot. Keep the soil moist in the shade and take root at 15℃ ~ 20℃ for 2 weeks. [Cultivation] Potted humus soil and peat soil are added with a small amount of river sand and cultivated soil as base fertilizer. Apply 1 ~ 2 times per growing season 1 fertilizer. Always keep the basin soil moist and avoid direct sunlight in spring, summer and autumn. When the stem is slightly longer, the core should be removed to promote branching and make the plants in the basin fuller. After the leaves at the base of over-aged plants turn yellow and fall off, the stems are exposed, which can be combined with changing pots and re-cutting in spring to promote the germination of new branches. Usually it can be cured indoors, and the room temperature in winter is not lower than 10℃. [Usage] It can be used to decorate living room, study room, office and bedroom, and can also be used as a color matching plant for autumn flower beds.